एपीए उद्धरण

 O''Brien. (2004).  Strategic environmental management for engineers.  Wiley.

शिकागो स्टाइल उद्धरण

 O''Brien.  Strategic Environmental Management for Engineers.  Wiley, 2004.

एमएलए उद्धरण

 O''Brien.  Strategic Environmental Management for Engineers.  Wiley, 2004.